for all of us at nbc news, thanks for joining us. -- captions by vitac -- www.vitac.com >>> this sunday, the president's foreign policy briefly overshadowed america's economic troubles. it's time to nation build at home, mr. obama says, as he announces the withdrawal of the remaining troops serving in iraq by the end of the year. >> after nearly nine years, america's war in iraq will be over. >> more than 4,000 american service men and women killed. at a cost of more than $700 billion. but does withdrawal now risk more bloodshed in iraq? and libya. gadhafi is dead. what now for the united states in that country? joining me, secretary of state hillary clinton. then, the republican race for the white house. the hands-on debate moment that signals a nasty turn in the primary fight over taxes, health care, and immigration. >> rick, i don't think i've ever hired an illegal in my life, so i'm afraid -- i'm looking forward to finding your facts on that. >> i'll show you what the facts are. >> rick, again -- i was speaking. >> and this morning our meet the candidates series continues with texas